WIFI Not working, cant downgrade

Hi, my phone stopped recognizing phone and wifi suddenly, i tried erasing persist like I saw on a tutorial and now sim works, with very little signal but it does, wifi wont enable since it doesnt have MAC, (02:00:00…).
I saw here: https://forum.xda-developers.com/t/mac-address-02-00-00-00-00-00.4077189/post-82188841 that downgrading to nougat solved the issue, i could downgrade to oreo writing the hosd file, settings FC’s but it worked, then, when i try to the the same to nougat…

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Source: XDA